Packing-spider.



W. S. TAYLOR & F. G. LIADY.

PACKING SPIDER.

APPLICATION FILED JULY 20, 1914.

1 l 5 1 9 l 36., v Patented Aug. 24, 1915.

WALTER S.- TAYLOR AND FRED G. LIADY, 0F BREA, CALIFORNIA.

' PACKING-SPIDER.

maniac.

Specification of Letters Patent.

Application filed July 20, 1914. Serial No. 852,083.

To all whom it may concern:

Be it known-that we, WALTER S. TAYLOR and FRED G. LIADY, citizens of the United States, both residing at Brea, in the county of Orange, State of California, have invented a new and useful Packing-Spider, of which the following is a specification.

Our invention relates to oil wells and particularly to casing head packers for such wells. v

It is common practice in oil wells, especially those of the California and similar fields to form the wall of the well in WllOlG or in part by means of a casing which may or may not be sealed in place but which is ordinarily gas tight and which extends down into the well often to a point near the bottom thereof. Centrally located in this casing is a line of tubing of small diameter which may carry a pump barrel at its lower end and through which the pump rods for actuating the pump in said barrel ordinarily pass. In gaseous wells the gas pressure is often utilized to assist in causing the well to flow or pump and it is common practice to provide a casing head which is rigidly secured to the casing and throughwhieh the tubing may pass.

The principal object of the present invention is to provide a packing spider of simple form and construction for making a tight closure between the tubing and the casing head.

A further object of the invention is to provide such a packing spider which will be of relatively simple and few parts which may be readily removed whenever 'desired.

A further object is to provide means whereby the weight of the tubing itself is utilized to keep the packing spider tight.

Referring to the drawings which are for illustrative purposes only: Figure l. is an elevation, partly in section, of a device embodying our invention, the parts of an oil well being shown diagrammatically. Fig. 2

is a plan view of a portion of the device shown in Fig. 1, the tubing being shown in section. Fig. 3 is a sectional elevation of he casing head with its cotiperating parts in place on th tubing and casing, taken on the plane a= x of Fig. 2.. Fig. i is aper spective view of one of the followe r rings. Fig.5 is a perspective View of'a spring ring. Fig. ('3 is a perspective View of a single packrings.

ing member. Fig. 7 is a cross section on the plane w w of Fig. 3.

Patented Aug. 24, 1915. I

Referring to the' drawings, 10 is a line of casing which is supported in the well partly by the walls of the well and partly by a casing support 11 located on the floor 12 of the derrick of the oil well. The casing support 11 is fastened about the casing under a collar 13 in. which is secured a nipple 14 upon which the casing head 15 is tightly screwed. The casing head 15 has a central bore 16 slightly larger than the tubing 17 which extends upwardly therethrough. A circular recess 18 is cut in the upper part of the casing head 15 terminating at its upper endin a slightly beveled portion as shown at 19 and terminating at its lower end in a shoulder 20. Seated on the shoulder 20 is a follower ring 21- formed in two halves as shown in Fig. 4:. Upon the ring 21 is placed a series of packing members or rings 22 and a follower ring 21 is placed upon the uppermost packing ring 22. Both the rings 21 and the packing members 22 have a groove 23cut around the outer surfacethereof and each of the same is provided with a spring ring 24 snapped in place in the said groove tending to hold the spring rings and the packing rings respectively together. A. follower 25 is provided which consistsof a sleeve having a reduced lower end 26 which rests on the upper follower ring movably secured tothe tubing 1 of sectional wedges 27.- Gas pipes 28 are being rea by means connected into an annular chamber 29 in the casing head 15 below the' packing and are provided with valves 30 through which the gas pressure may be relieved. A gage 31 is provided for the purpose of indicating the exact pressure in the top of the casing. The gage 31 is in open communication with the chamber 29 through a pipe 32.

The method of operation of the invention is as follows: The casing being partly suported by the walls of the well and partly y the casing support 11 the casing head 15 is secured thereon and the tubing 17 is lowered into place, being suitably supported the well known means. The packing spring rings are placed upon the respective The follower 25 is then allowed to slide down into the'position shown in Fig. 3

' temporarily from the upper end by any of of the drawings and the wedging slips 2'3 are placed in the upper end of the follower between the same and the tubing tightly locking the follower to the tubing. llhe temporary supporting means is then gradually released allowing the weight of the tubing to rest on the follower by means of the wedging slips 27 which compress the packing members and make a gas tight joint between the casing head and the tubing, it being understood that the tubing so supported is of considerable length and weight. By regulation of'thev'alves 30 a gas pressure may be maintainedin the chamber 29 and the space between the casing and the tubing, thereby causing all of the flow of the oil fromv the well to be "directed through thetubing. I

We claim as our invention:

1. A packing spider for oil wells comprising a casing head tightly secured'to the top of the casing and having an opening through which the tubingv passes, packing 'mean's around the tubing inside a;recess 25k in said casing head, and means for causing the weight of the tubing to compress said packing.

2. A packing spider for oilwe'lls compris ing a casing head tightly secured to the top casing head, a follower for compressing said 1 packing, and a series of sectional wedges for securing the tubing to said follower.

4c. A packing spider for oil wells compr is ing a casing head tightly secured to the top of the casing and having an opening through which the: tubing passes, packing means around the tubing inside a recess in"said packing an supporting the tubing.

of the casing and having an'opening through which the tubing passes, packing means around the tubing inside a recess in said casing head, a follower for compressing said packing, and :means for causing the weight of the tubing to rest on said follower.

3. A packing spider for oil wells comprising a casing head tightly secured to the top of the casing and having an opening through which the tubing passes, packing means around the tubing inside av recess in said 6. A packing spider for oilwells comprising a casing head secured to the upper end of the casing ofan oil well and having an opening therethrough slightly larger than the tubing, said opening being enlarged into and a follower resting on said I a packing recess near the top, a series of. I

packing rings each havinga circular groove in its periphery in'which a retaining ring is placed, and a follower resting on said pack ing-and-supporting the tubing.

. In testimony whereof, we have hereunto set our hands at Anaheim, California, this 11th day (if July, 191A.-

' WALTER S. TAYLOR. FRED G. LIADY.

i In presence of. H. V. WnIsnn/f.

' P. W. THoMrsoN, W. 5.8mm. 

